Glycals, oxidative deprotection

Substituted thiazoles, which on deprotection afford aldehydes, have been utilized in the synthesis of derivatives of dicarbonyl sugars such as the methyl glycoside 3. Various procedures for the selective oxidation of both protected and unprotected glycals at the aUylic position are discussed in Chapter 13. The pyrone 4 and the diketone dihydrate 5 have been... 

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